EP 0932583 A1 19990804 - METHOD TO REDUCE OR PREVENT SCALING
Title (en)
METHOD TO REDUCE OR PREVENT SCALING
Title (de)
VERFAHREN ZUR REDUZIERUNG BZW. VERHINDERUNG DER STEINBILDUNG
Title (fr)
PROCEDE POUR REDUIRE OU EMPECHER L'ENTARTRAGE
Publication
Application
Priority
- CH 250896 A 19961015
- CH 181697 A 19970729
- IB 9701243 W 19971008
Abstract (en)
[origin: WO9816477A1] An aqueous solution with a tendency towards scaling is passed through an electrolysis chamber having at least two reversible electrodes (6) and a bipolar electrode (7). The polarity of the electrodes (6) is reversed at time intervals. An alternating current can be applied alternatively to the electrodes instead of a direct current with regular pole reversal of electrodes. This method of processing enables scaling to be reduced considerably or even prevented, and the salt content of the solution is substantially maintained. The method is especially suitable to reduce or prevent scaling from natural waters, without substantially impairing water quality.
IPC 1-7
IPC 8 full level
C02F 1/46 (2006.01); C02F 1/461 (2006.01); C25B 9/00 (2006.01); C02F 1/00 (2006.01)
CPC (source: EP US)
C02F 1/4602 (2013.01 - EP US); C02F 1/46109 (2013.01 - EP US); C02F 1/46114 (2013.01 - EP US); C02F 2001/46128 (2013.01 - EP US); C02F 2201/4613 (2013.01 - EP US); C02F 2201/4617 (2013.01 - EP US); C02F 2301/024 (2013.01 - EP US)
Citation (search report)
See references of WO 9816477A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9816477 A1 19980423; AT E244686 T1 20030715; AU 4393597 A 19980511; AU 728729 B2 20010118; CA 2268666 A1 19980423; CA 2268666 C 20061219; CN 1105082 C 20030409; CN 1233231 A 19991027; DE 59710429 D1 20030814; EP 0932583 A1 19990804; EP 0932583 B1 20030709; JP 2001502229 A 20010220; JP 3853372 B2 20061206; US 6258250 B1 20010710
DOCDB simple family (application)
IB 9701243 W 19971008; AT 97942143 T 19971008; AU 4393597 A 19971008; CA 2268666 A 19971008; CN 97198863 A 19971008; DE 59710429 T 19971008; EP 97942143 A 19971008; JP 51813598 A 19971008; US 28444199 A 19990414